The stream of social-media revelry coming out of Lollapalooza was interrupted late Friday night by a series of tweets posted to the Twitter account of musician Dev Hynes alleging that he and a companion had been assaulted by security guards at the festival. Hynes, front man for the band Blood Orange, had performed at Lollapalooza that afternoon, wearing a T-shirt that he said was a statement against police brutality.

I WAS JUMPED BY THREE SECURITY GUARDS AND SAMANTHA WAS TOUCHED BY SECURITY. WE ARE HURT. WE PLAYED YOUR FESTIVAL. @lollapalooza

“Late Friday night, we learned of an incident involving an artist and a security guard on site. Since then, we have been in contact with those involved and the authorities, as we work together to resolve the situation. As always, our top priority is to ensure the safety of everyone at the festival.”

A publicist for Hynes said that she had no further information or comment. As of early Saturday afternoon, Hynes’s Twitter feed had not been updated since he posted a message late Friday night asking for potential witnesses to get in touch.

One of his earlier tweets said, “We are pressing charges.” On Saturday, a representative for the Chicago police told Speakeasy that no report of the incident could be found under Hynes’s name.